Appaeatus



651941 PATENTED JUNE 18, 1867.

J. PRICE FORGING APPARATUS.

I A Wziyzaasea:

@Initrh gitstrs igment @ffitti JOHN PRICE, on New YORK, N. Y

Letters Patent No. 65,941, dated June 18, 1867.

IMPROVED FORGINGAPEARATUS.

flit: Stigibuls rthmh in iuflgcst fittttrsflihtmtmit mating part at tlgestmt.

TO ALL WHOM ,IIIMAY CONCERN:

Be it knownthat I, JOHN PRICE, of the city, county, and State-of NewYork, have invented-certain new and useful Improvements inPower-Hammers; and I do hereby declare that the following is a full,clear, and exact description thereof, reference. being bad to theaccompanying dra'wings, and to the letters of reference marked thereon.

The object of iny invention is to provide a means for catching andholding the hammer at or near its highest elevation whenever theoperator desires more time to manipulate the work than that which can beused between two strokes of the hammer, whenever the power which drivesthe hammer is disconnected or in any other case where it is desired tostop the hammer at or near its highest point. It consists of crack,spring, and slidin catch so constructed and arranged in relation-to thehammer-head that on sliding the said patch toward the said week it willtake into the teeth of the latter and stop the hammer, the said springreceiving the shock and preventing the breaking of theparts. Itconsists, also, in a combination of certain devices hereinafterdescribed for imparting inotion to the said sliding-catch tolstop thehammer, as set forth, when the power which drives the said hammer isdisconnected. In the accompanying dra\vings--- Figure 1 is a frontelevation, with my improvements attached thereto, of one of that classof hammers In which the hammer-head itself is driven by means of apiston, working in a cylinder, which is, in turn, driven by a crank andconnection from the driving-shaft.

Figure 2 is a. side elevation of the same.

Figure 3 is a detail view of the devices for disconnecting the power.

Figure 4 is a vertical section parallel to the front of fig. 1,andpassing through the rack, spring, and sliding-bolt.

Figure 5 is a top view of the hammer-dread.

Figure 6 is a section of the same through the line a: 1-, fig. 4.,

A'is the hammer, B the piston, C the cylinder, and E the frame of themachine. A projection or yoke, F, is cast on the hammer head and arecess made immediately under the middle of the said yoke in the saidhammer head. In this recess and under this yoke are piaeed the rack Gand spring or springs H H. A red, I, passes through the said springsthrough the top of the yoke F and screws into the head of the rack G,the object (at having the red I so connected being tofurnish a means forinserting orremoving the said rack and spring, and to do this the red Iis unscrewed and removed. A square head on the -rod enables me'so toremove it. In a recess or slot in one of the jaws or wayson which thehammer slides is placed the sliding-bolt or catch J, which takes intothe teeth. on the rack G to stop the descent of the hammer, whenoperated for that purpose by any suitable device. ihe devices which areused for operating this-sliding-catch J in the fornrshown in thedrawings areseen .in figs. 1, 2, and 3. A chunk, a,'onthe rock shai'tf,is connected to the sliding-catch J by the pin C, which works in theslot-d in the crank a. The rock-shaft b is driven by a crank, e, andc'onnection,f, from the levers g, on which the friction-pulley h .ishung in such a way that when the said friction-pulley is pressed upagainst the belt a, by hearing down on the handlej thesame motionwithdraws the sliding-catch J from the rack G and allows the hammer tooperate, and whenthe pressure is taken from the handlej and thefrictionpulley It falls back from the belt 1', the said sliding-catchJis thrown in so as to take into the teeth on the rack G and stop thehammer. These devices form a, convenient and cheap means for operatingthe sliding-catch J when my improvements are attached to a power-hammerof the form and construction shown, but it is very obvious that theprincipal feature of my invention, 2'. e., the combination withuhammer-head of a rack, spring, and sliding-catch, is equally applicableto almost or quite any form of powerhammer in which the hammer itselfhas a reciprocating motion. -Much difficulty has lgcen experienced inthe operation of power-hammers for the following reasons: that theycannot in many cases he stopped quickly enough; that the operator cannotstop thomwhile the hammer is up in.order to turn oi otherwise manipulatethe work in hand; and that .the hammerhead rests on the lower die whenthe hammer is stopped, rendering.it necessary to start the hammer andput the work on between two blows," which is often a very diflicultoperation. All these difliculties are overcome by my invention. I

' It is obvious that various modifications of this invention may beemployed without departing in any essential par-ticular therefrom,'as,for exalnple, the rack and spring may be inserted in a proper recess inone of the side pieces or ways, and the sliding-catch set in a channelor opening in the hammer-heed and operated by a slide or other devicewhich might beibrought to bear on the end of the snidcntch or own. pinprojecting fromit. I

do not, consequently, confine myself to the exact construction shown,but I claimv -1. The combinntion, with the hammer-head, of a rack,spring, and sliding-catch, substantially as and for the purpose setforth. v

2. Openating the sliding-catch J' by means of the lever g, whichconnects and disconnects the power for driving the hnmlnei the saidlever g being connected for that purpose to the sliding-catch J by thearm a, rockshoft 6,31!!! e, andconn'ecting-rod or link f, or by theirequivalents, in such a. mannen thnt'the said sliding-catch J will bethi'own'inward to catch the hammer when the power is disconnected, anddrown out to release the hammer when the power is u pplied by the levei'g, substantially as and for the pnipose set forth. V

' Y I JOHN PRICE.

Witnesses:

Tnosr 1?; How, -R. H. Sexton,

